I'm trying to sign into/sync Firefox on a new phone. It keeps saying I need to get code from authenticator app. I don't have one! I try to scan IR code from computer, but it still requires a code. Sometimes it says it is sending a code to my email address. It does not. I ask it to resend code but it never does. I am logged into Firefox on my computer, is there a way to turn off the authenticator or otherwise solve this problem?